Volunteering. And before you brush it out skeptically, like "oh yeah right, those people", it really doesn't have to be anything you don't care about. I volunteer at a boat house on the city lake nearby, just putting kids on pedal boats and kayaks. I don't even call it volunteering, I just love kayaks and water. It's amazing how your perspective of time and people and service shifts, when you spend some time being "i…
It's really great, it doesn't feel anything like "free labour", it mostly feels like hanging out with some nice people and doing a fun activity.